Table 4 Rare Earth elements concentrations of serpentinite rocks together with the normalized values:
Analysis | Serpentine rocks | Chondrite values Boynton, 1984 | Normalized values | ||||||
|---|---|---|---|---|---|---|---|---|---|
Rock type | Pyroxene-rich Harzburgite | Olivine-rich Harzburgite | Pyroxene-rich harzburgite | Olivine-rich harzburgite | |||||
Samples No. | 22 | 20 | 37 | 19 | 22 | 20 | 37 | 19 | |
La | 0.119 | 0.166 | 0.131 | 0.178 | 0.31 | 0.384 | 0.535 | 0.423 | 0.574 |
Ce | 0.262 | 0.0456 | 0.22 | 0.259 | 0.808 | 0.324 | 0.564 | 0.272 | 0.321 |
Pr | 0.033 | 0.079 | 0.019 | 0.023 | 0.122 | 0.270 | 0.648 | 0.156 | 0.189 |
Nd | 0.168 | 0.402 | 0.069 | 0.091 | 0.6 | 0.280 | 0.670 | 0.115 | 0.152 |
Sm | 0.047 | 0.152 | < 0.019 | < 0.019 | 0.195 | 0.241 | 0.779 | – | – |
Eu | 0.017 | 0.011 | < 0.002 | 0.002 | 0.0735 | 0.231 | 0.150 | – | – |
Gd | 0.075 | 0.175 | < 0.019 | < 0.019 | 0.259 | 0.290 | 0.676 | – | – |
Tb | 0.011 | 0.031 | < 0.002 | < 0.002 | 0.0474 | 0.232 | 0.654 | – | – |
Dy | 0.028 | 0.213 | 0.008 | 0.008 | 0.322 | 0.255 | 0.661 | 0.025 | 0.025 |
Ho | 0.017 | 0.047 | < 0.004 | < 0.004 | 0.0718 | 0.237 | 0.655 | – | – |
Er | 0.039 | 0.139 | < 0.004 | < 0.004 | 0.21 | 0.186 | 0.662 | – | – |
Yb | 0.034 | 0.174 | < 0.011 | < 0.011 | 0.209 | 0.163 | 0.833 | – | – |
Lu | < 0.008 | 0.032 | < 0.008 | < 0.008 | 0.0322 | – | 0.994 | – | – |
Sum | 0.904 | 2.077 | 0.447 | 0.561 | 3.2599 | 3.092 | 8.481 | 0.990 | 1.287 |
La/Yb | 2.36 | 0.64 | – | – | |||||
